Carburetor; Operation And Construation - Robin EY15 Service Manual

8. CARBURETOR
8-1
OPERATION
and
CONSTRUCTION
(See Fig.
55 and Fig. 56.)
8-1 -1 FLOAT SYSTEM
The float chamber is located just below the carburetor body and, with a float and a needle valve, maintains a constant fuel
level during engine operation.
The fuel flows from the fuel tank into the float chamber through the needle valve. When the fuel rises to a specific level, the
float rises; and when its buoyancy and fuel pressure are balanced, the needle valve close to the shut off the fuel, thereby
keeping the fuel at the reference level.
r
By-Pass Choke
,-
Pilot Jet
n
I I
Throttle Valve
Pilot Outlet
Needle
.
Main Nozzle
Main Air
Jet
Body
/-'-
Float
Main Jet
Fig.
55
Float
-
42 -